Home / 81,497.10-122,136.30-58,096.20

Finding the Fourth Proportional to 81,497.10, 122,136.30 and 58,096.20

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Solution

The fourth proportional to 81,497.10, 122,136.30 and 58,096.20 is: 87,066.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,497.10 : 122,136.30 = 58,096.20 : x
  2. Step 2: Convert to fraction form
    81,497.10/122,136.30 = 58,096.20/x
  3. Step 3: Cross multiply
    81,497.10x = 122,136.30 × 58,096.20
  4. Step 4: Simplify right side
    81,497.10x = 7,095,654,912.06
  5. Step 5: Solve for x
    x = 7,095,654,912.06/81,497.10
  6. Step 6: Final answer
    x = 87,066.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.